Fireworks: Great fun, but also a potential danger in terms of visibility (Photo Credit: AngMoKio)

This is a Spenserian stanza about a recent study, which investigated the effect of bonfire night on visibility, and found that on average it is reduced by approximately 25% across the country, but that the visibility reduction is more significant when the atmospheric relative humidity is high. More should also be done to issue poor visibility warning in advance, especially in weather conditions that are likely to exacerbate poor visibility.